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([2620:10d:c090:500::aa81]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b6b3502d22sm15327177eec.10.2026.01.19.17.49.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Jan 2026 17:49:07 -0800 (PST) Message-ID: <088b071d1a43b403123d772f56ce033e91cb4252.camel@gmail.com> Subject: Re: [PATCH bpf-next v2 00/13] bpf: Kernel functions with KF_IMPLICIT_ARGS From: Eduard Zingerman To: Ihor Solodrai , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau Cc: Mykyta Yatsenko , Tejun Heo , Alan Maguire , Benjamin Tissoires , Jiri Kosina , Amery Hung , bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, sched-ext@lists.linux.dev Date: Mon, 19 Jan 2026 17:49:05 -0800 In-Reply-To: <20260116201700.864797-1-ihor.solodrai@linux.dev> References: <20260116201700.864797-1-ihor.solodrai@linux.dev> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.2 (3.58.2-1.fc43) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2026-01-16 at 12:16 -0800, Ihor Solodrai wrote: [...] > v1->v2: > - Replace the following kernel functions with KF_IMPLICIT_ARGS version: > - bpf_stream_vprintk_impl -> bpf_stream_vprintk > - bpf_task_work_schedule_resume_impl -> bpf_task_work_schedule_resume > - bpf_task_work_schedule_signal_impl -> bpf_task_work_schedule_signal > - bpf_wq_set_callback_impl -> bpf_wq_set_callback_impl Just to clarify my understanding, this is a breaking change, right? E.g. bpf_stream_vprintk_impl is no longer in vmlinux.h and on a load attempt an error is reported: kfunc 'bpf_stream_vprintk_impl' is referenced but wasn't resolved Maybe call it out explicitly in the cover letter?